Question

помогите пжпжпжппжпжпж​

Answer 1

Объяснение:

$-1\frac{1}{7} *(\frac{4}{5} +\frac{19}{20})*(6\frac{5}{6} +4\frac{2}{3})=-\frac{8}{7}*\frac{4*4+19}{20} *(\frac{41}{6}+\frac{14}{3} )=-\frac{8}{7} *\frac{16+19}{20}*\frac{41+14*2}{6}=\\=-\frac{8}{7} +\frac{35}{20}*\frac{41+28}{6} =-\frac{8}{7}*\frac{7}{4}*\frac{69}{6}=-\frac{8*7*23}{7*4*2} =-\frac{8*23}{8}= -23.$